Low Power Adder Based Auditory Filter Architecture

Table 2

Leakage power of the existing and proposed full adder architecture.

	Existing regular full adder architecture [17]			Reconfigured full adder architecture			% gain
Cell	XOR	AND	OR	NAND	OR—AND	AND—AND OR
Number of cells	4	2	1	2	2	1
C_Lp (nW)	109.06	44.5	60.35	17.97	41.51	77.99
T_Lp (nW)	585.59			196.95			66.36

Note: C_Lp: cell leakage power; T_Lp: total leakage power.